Home / 285,091,648.18-393,426,474.33-154,711,456.18

Finding the Fourth Proportional to 285,091,648.18, 393,426,474.33 and 154,711,456.18

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Solution

The fourth proportional to 285,091,648.18, 393,426,474.33 and 154,711,456.18 is: 213,501,809.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,091,648.18 : 393,426,474.33 = 154,711,456.18 : x
  2. Step 2: Convert to fraction form
    285,091,648.18/393,426,474.33 = 154,711,456.18/x
  3. Step 3: Cross multiply
    285,091,648.18x = 393,426,474.33 × 154,711,456.18
  4. Step 4: Simplify right side
    285,091,648.18x = 60,867,582,743,357,688
  5. Step 5: Solve for x
    x = 60,867,582,743,357,688/285,091,648.18
  6. Step 6: Final answer
    x = 213,501,809.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.